Long‐Term Evolution of Magnetic Turbulence in Relativistic Collisionless Shocks: Electron‐Positron Plasmas
Long‐Term Evolution of Magnetic Turbulence in Relativistic Collisionless Shocks: Electron‐Positron Plasmas
We study the long term evolution of magnetic fields generated by a collisionless relativistic $e^+e^-$ shock which is initially unmagnetized. Our 2D particle-in-cell numerical simulations show that downstream of such a Weibel-mediated shock, particle distributions are close to isotropic, relativistic Maxwellians, and the magnetic turbulence is highly intermittent spatially, with …